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850 lines
27 KiB
850 lines
27 KiB
/*****************************************************************************
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* decklink.cpp: BlackMagic DeckLink SDI input module
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*****************************************************************************
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* Copyright (C) 2010 Steinar H. Gunderson
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* Copyright (C) 2012-2014 Rafaël Carré
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*
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* Authors: Steinar H. Gunderson <steinar+vlc@gunderson.no>
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Rafaël Carré <funman@videolanorg>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_demux.h>
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef _WIN32
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# include <winsock2.h>
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#else
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# include <netinet/in.h>
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#endif
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#include "vlc_decklink.h"
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#ifndef _WIN32
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#include <DeckLinkAPIDispatch.cpp>
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#endif
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#include <DeckLinkAPIVersion.h>
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#if BLACKMAGIC_DECKLINK_API_VERSION < 0x0b010000
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#define IID_IDeckLinkProfileAttributes IID_IDeckLinkAttributes
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#define IDeckLinkProfileAttributes IDeckLinkAttributes
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#endif
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#include "sdi.h"
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#include <atomic>
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#include <vector>
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static int Open (vlc_object_t *);
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static void Close(vlc_object_t *);
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#define CARD_INDEX_TEXT N_("Input card to use")
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#define CARD_INDEX_LONGTEXT N_( \
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"DeckLink capture card to use, if multiple exist. " \
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"The cards are numbered from 0.")
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#define MODE_TEXT N_("Desired input video mode. Leave empty for autodetection.")
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#define MODE_LONGTEXT N_( \
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"Desired input video mode for DeckLink captures. " \
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"This value should be a FOURCC code in textual " \
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"form, e.g. \"ntsc\".")
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#define AUDIO_CONNECTION_TEXT N_("Audio connection")
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#define AUDIO_CONNECTION_LONGTEXT N_( \
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"Audio connection to use for DeckLink captures. " \
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"Valid choices: embedded, aesebu, analog. " \
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"Leave blank for card default.")
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#define RATE_TEXT N_("Audio samplerate (Hz)")
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#define RATE_LONGTEXT N_( \
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"Audio sampling rate (in hertz) for DeckLink captures. " \
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"0 disables audio input.")
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#define CHANNELS_TEXT N_("Number of audio channels")
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#define CHANNELS_LONGTEXT N_( \
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"Number of input audio channels for DeckLink captures. " \
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"Must be 2, 8 or 16. 0 disables audio input.")
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#define VIDEO_CONNECTION_TEXT N_("Video connection")
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#define VIDEO_CONNECTION_LONGTEXT N_( \
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"Video connection to use for DeckLink captures. " \
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"Valid choices: sdi, hdmi, opticalsdi, component, " \
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"composite, svideo. " \
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"Leave blank for card default.")
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static const char *const ppsz_videoconns[] = {
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"sdi", "hdmi", "opticalsdi", "component", "composite", "svideo"
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};
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static const char *const ppsz_videoconns_text[] = {
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N_("SDI"), N_("HDMI"), N_("Optical SDI"), N_("Component"), N_("Composite"), N_("S-Video")
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};
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static const char *const ppsz_audioconns[] = {
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"embedded", "aesebu", "analog"
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};
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static const char *const ppsz_audioconns_text[] = {
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N_("Embedded"), N_("AES/EBU"), N_("Analog")
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};
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#define ASPECT_RATIO_TEXT N_("Aspect ratio")
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#define ASPECT_RATIO_LONGTEXT N_(\
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"Aspect ratio (4:3, 16:9). Default assumes square pixels.")
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vlc_module_begin ()
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set_shortname(N_("DeckLink"))
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set_description(N_("Blackmagic DeckLink SDI input"))
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set_subcategory(SUBCAT_INPUT_ACCESS)
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add_integer("decklink-card-index", 0,
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CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT)
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add_string("decklink-mode", NULL,
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MODE_TEXT, MODE_LONGTEXT)
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add_string("decklink-audio-connection", 0,
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AUDIO_CONNECTION_TEXT, AUDIO_CONNECTION_LONGTEXT)
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change_string_list(ppsz_audioconns, ppsz_audioconns_text)
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add_integer("decklink-audio-rate", 48000,
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RATE_TEXT, RATE_LONGTEXT)
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add_integer("decklink-audio-channels", 2,
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CHANNELS_TEXT, CHANNELS_LONGTEXT)
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add_string("decklink-video-connection", 0,
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VIDEO_CONNECTION_TEXT, VIDEO_CONNECTION_LONGTEXT)
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change_string_list(ppsz_videoconns, ppsz_videoconns_text)
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add_string("decklink-aspect-ratio", NULL,
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ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT)
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add_bool("decklink-tenbits", false, N_("10 bits"), N_("10 bits"))
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add_shortcut("decklink")
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set_capability("access", 0)
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set_callbacks(Open, Close)
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vlc_module_end ()
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static int Control(demux_t *, int, va_list);
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namespace {
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class DeckLinkCaptureDelegate;
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struct demux_sys_t
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{
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IDeckLink *card;
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IDeckLinkInput *input;
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DeckLinkCaptureDelegate *delegate;
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/* We need to hold onto the IDeckLinkConfiguration object, or our settings will not apply.
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See section 2.4.15 of the Blackmagic DeckLink SDK documentation. */
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IDeckLinkConfiguration *config;
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IDeckLinkProfileAttributes *attributes;
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#ifdef _WIN32
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BOOL autodetect;
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#else
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bool autodetect;
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#endif
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es_out_id_t *video_es;
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es_format_t video_fmt;
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es_out_id_t *audio_es[8];
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es_out_id_t *cc_es;
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vlc_mutex_t pts_lock;
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vlc_tick_t last_pts; /* protected by <pts_lock> */
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uint32_t dominance_flags;
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int channels;
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int audio_streams;
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bool tenbits;
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};
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} // namespace
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static const char *FieldDominanceStr(BMDFieldDominance dom)
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{
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switch(dom)
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{
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case bmdProgressiveFrame:
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return "";
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case bmdProgressiveSegmentedFrame:
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return ", segmented";
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case bmdLowerFieldFirst:
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return ", interlaced [BFF]";
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case bmdUpperFieldFirst:
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return ", interlaced [TFF]";
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case bmdUnknownFieldDominance:
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default:
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return ", unknown field dominance";
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}
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}
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static uint32_t FieldDominanceBlockFlag(BMDFieldDominance dom)
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{
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switch(dom)
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{
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case bmdLowerFieldFirst:
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return BLOCK_FLAG_BOTTOM_FIELD_FIRST;
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case bmdUpperFieldFirst:
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return BLOCK_FLAG_TOP_FIELD_FIRST;
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case bmdProgressiveFrame:
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case bmdProgressiveSegmentedFrame:
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case bmdUnknownFieldDominance:
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default:
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return 0;
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}
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}
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static int GetModeSettings(demux_t *demux, IDeckLinkDisplayMode *m,
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BMDDetectedVideoInputFormatFlags fmt_flags)
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{
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demux_sys_t *sys = (demux_sys_t *)demux->p_sys;
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BMDTimeValue frame_duration, time_scale;
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if (m->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
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time_scale = 0;
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frame_duration = 1;
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}
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vlc_fourcc_t chroma = 0;
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switch (fmt_flags) {
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case bmdDetectedVideoInputYCbCr422:
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chroma = sys->tenbits ? VLC_CODEC_I422_10L : VLC_CODEC_UYVY;
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break;
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case bmdDetectedVideoInputRGB444:
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chroma = VLC_CODEC_ARGB;
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break;
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default:
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msg_Err(demux, "Unsupported input format");
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return VLC_ENOTSUP;
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}
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es_format_Init(&sys->video_fmt, VIDEO_ES, chroma);
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sys->video_fmt.video.i_chroma = chroma;
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sys->video_fmt.video.i_width = m->GetWidth();
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sys->video_fmt.video.i_height = m->GetHeight();
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sys->video_fmt.video.i_sar_num = 1;
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sys->video_fmt.video.i_sar_den = 1;
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sys->video_fmt.video.i_frame_rate = time_scale;
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sys->video_fmt.video.i_frame_rate_base = frame_duration;
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sys->video_fmt.i_bitrate = sys->video_fmt.video.i_width * sys->video_fmt.video.i_height * sys->video_fmt.video.i_frame_rate * 2 * 8;
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unsigned aspect_num, aspect_den;
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if (!var_InheritURational(demux, &aspect_num, &aspect_den, "decklink-aspect-ratio") &&
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aspect_num > 0 && aspect_den > 0) {
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sys->video_fmt.video.i_sar_num = aspect_num * sys->video_fmt.video.i_height;
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sys->video_fmt.video.i_sar_den = aspect_den * sys->video_fmt.video.i_width;
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}
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sys->dominance_flags = FieldDominanceBlockFlag(m->GetFieldDominance());
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return VLC_SUCCESS;
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}
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namespace {
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class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
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{
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public:
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DeckLinkCaptureDelegate(demux_t *demux) : demux_(demux)
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{
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m_ref_.store(1);
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}
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virtual ~DeckLinkCaptureDelegate() = default;
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HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *) override { return E_NOINTERFACE; }
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ULONG STDMETHODCALLTYPE AddRef(void) override
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{
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return m_ref_.fetch_add(1);
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}
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ULONG STDMETHODCALLTYPE Release(void) override
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{
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uintptr_t new_ref = m_ref_.fetch_sub(1);
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if (new_ref == 0)
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delete this;
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return new_ref;
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}
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HRESULT STDMETHODCALLTYPE
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VideoInputFormatChanged(BMDVideoInputFormatChangedEvents events,
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IDeckLinkDisplayMode *mode,
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BMDDetectedVideoInputFormatFlags flags) override
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{
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demux_sys_t *sys = static_cast<demux_sys_t *>(demux_->p_sys);
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if( !(events & bmdVideoInputDisplayModeChanged ))
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return S_OK;
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decklink_str_t tmp_name;
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char *mode_name = NULL;
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if (mode->GetName(&tmp_name) == S_OK) {
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mode_name = DECKLINK_STRDUP(tmp_name);
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DECKLINK_FREE(tmp_name);
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}
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msg_Dbg(demux_, "Video input format changed to %s",
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(mode_name) ? mode_name : "unknown");
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free(mode_name);
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if (!sys->autodetect) {
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msg_Err(demux_, "Video format detection disabled");
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return S_OK;
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}
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BMDPixelFormat fmt;
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switch (flags) {
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case bmdDetectedVideoInputYCbCr422:
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fmt = sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV;
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break;
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case bmdDetectedVideoInputRGB444:
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fmt = bmdFormat8BitARGB;
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break;
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default:
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msg_Err(demux_, "Unsupported input format");
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return S_OK;
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}
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es_out_Del(demux_->out, sys->video_es);
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sys->video_es = NULL;
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if (GetModeSettings(demux_, mode, flags) != VLC_SUCCESS)
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return E_NOTIMPL;
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sys->video_es = es_out_Add(demux_->out, &sys->video_fmt);
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sys->input->PauseStreams();
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sys->input->EnableVideoInput( mode->GetDisplayMode(), fmt, bmdVideoInputEnableFormatDetection );
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sys->input->FlushStreams();
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sys->input->StartStreams();
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return S_OK;
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}
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HRESULT STDMETHODCALLTYPE
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VideoInputFrameArrived(IDeckLinkVideoInputFrame*,
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IDeckLinkAudioInputPacket*) override;
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private:
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std::atomic_uint m_ref_;
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demux_t *demux_;
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};
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} // namespace
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HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
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{
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demux_sys_t *sys = static_cast<demux_sys_t *>(demux_->p_sys);
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if (videoFrame) {
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if (videoFrame->GetFlags() & bmdFrameHasNoInputSource) {
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msg_Warn(demux_, "No input signal detected (%ldx%ld)",
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videoFrame->GetWidth(), videoFrame->GetHeight());
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return S_OK;
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}
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const int width = videoFrame->GetWidth();
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const int height = videoFrame->GetHeight();
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const int stride = videoFrame->GetRowBytes();
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int bpp = 0;
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switch (sys->video_fmt.i_codec) {
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case VLC_CODEC_I422_10L:
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case VLC_CODEC_ARGB:
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bpp = 4;
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break;
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case VLC_CODEC_UYVY:
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bpp = 2;
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break;
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};
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block_t *video_frame = block_Alloc(width * height * bpp);
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if (!video_frame)
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return S_OK;
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const uint32_t *frame_bytes;
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videoFrame->GetBytes((void**)&frame_bytes);
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BMDTimeValue stream_time, frame_duration;
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videoFrame->GetStreamTime(&stream_time, &frame_duration, CLOCK_FREQ);
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video_frame->i_flags = BLOCK_FLAG_TYPE_I | sys->dominance_flags;
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video_frame->i_pts = video_frame->i_dts = VLC_TICK_0 + stream_time;
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if (sys->video_fmt.i_codec == VLC_CODEC_I422_10L) {
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v210_convert((uint16_t*)video_frame->p_buffer, frame_bytes, width, height);
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IDeckLinkVideoFrameAncillary *vanc;
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if (videoFrame->GetAncillaryData(&vanc) == S_OK) {
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for (int i = 1; i < 21; i++) {
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uint32_t *buf;
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if (vanc->GetBufferForVerticalBlankingLine(i, (void**)&buf) != S_OK)
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break;
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std::vector<uint16_t> dec(width);
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v210_convert(&dec.front(), buf, width, 1);
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block_t *cc = vanc_to_cc(demux_, &dec.front(), width * 2);
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if (!cc)
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continue;
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cc->i_pts = cc->i_dts = VLC_TICK_0 + stream_time;
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if (!sys->cc_es) {
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es_format_t fmt;
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es_format_Init( &fmt, SPU_ES, VLC_CODEC_CEA608 );
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fmt.psz_description = strdup(N_("Closed captions 1"));
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if (fmt.psz_description) {
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sys->cc_es = es_out_Add(demux_->out, &fmt);
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msg_Dbg(demux_, "Adding Closed captions stream");
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}
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}
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if (sys->cc_es)
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es_out_Send(demux_->out, sys->cc_es, cc);
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else
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block_Release(cc);
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break; // we found the line with Closed Caption data
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}
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vanc->Release();
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}
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} else if (sys->video_fmt.i_codec == VLC_CODEC_UYVY) {
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for (int y = 0; y < height; ++y) {
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const uint8_t *src = (const uint8_t *)frame_bytes + stride * y;
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uint8_t *dst = video_frame->p_buffer + width * 2 * y;
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memcpy(dst, src, width * 2);
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}
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} else {
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memcpy(video_frame->p_buffer, frame_bytes, width * height * bpp);
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}
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vlc_mutex_lock(&sys->pts_lock);
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if (video_frame->i_pts > sys->last_pts)
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sys->last_pts = video_frame->i_pts;
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vlc_mutex_unlock(&sys->pts_lock);
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es_out_SetPCR(demux_->out, video_frame->i_pts);
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es_out_Send(demux_->out, sys->video_es, video_frame);
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}
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if (audioFrame && audioFrame->GetSampleFrameCount())
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{
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const int bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * sys->channels;
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BMDTimeValue packet_time;
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void *frame_bytes;
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audioFrame->GetBytes(&frame_bytes);
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audioFrame->GetPacketTime(&packet_time, CLOCK_FREQ);
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if(sys->audio_streams > 1)
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{
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for(int i=0; i<sys->audio_streams; i++)
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{
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size_t i_samples = bytes / (sys->audio_streams * 4);
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block_t *p_frame = block_Alloc(i_samples * 4);
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if (!p_frame)
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continue;
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for(size_t j=0; j<i_samples; j++) /* for each pair sample */
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{
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memcpy(&p_frame->p_buffer[j * 4],
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&reinterpret_cast<uint8_t *>(frame_bytes)[(j * sys->audio_streams + i) * 4],
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4);
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}
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p_frame->i_pts = p_frame->i_dts = VLC_TICK_0 + packet_time;
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es_out_Send(demux_->out, sys->audio_es[i], p_frame);
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}
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}
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else
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{
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block_t *audio_frame = block_Alloc(bytes);
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if (!audio_frame)
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return S_OK;
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memcpy(audio_frame->p_buffer, frame_bytes, bytes);
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audio_frame->i_pts = audio_frame->i_dts = VLC_TICK_0 + packet_time;
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es_out_Send(demux_->out, sys->audio_es[0], audio_frame);
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}
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vlc_mutex_lock(&sys->pts_lock);
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if (VLC_TICK_0 + packet_time > sys->last_pts)
|
|
sys->last_pts = VLC_TICK_0 + packet_time;
|
|
vlc_mutex_unlock(&sys->pts_lock);
|
|
|
|
es_out_SetPCR(demux_->out, VLC_TICK_0 + packet_time);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
static int GetAudioConn(demux_t *demux)
|
|
{
|
|
demux_sys_t *sys = (demux_sys_t *)demux->p_sys;
|
|
|
|
char *opt = var_CreateGetNonEmptyString(demux, "decklink-audio-connection");
|
|
if (!opt)
|
|
return VLC_SUCCESS;
|
|
|
|
BMDAudioConnection c;
|
|
if (!strcmp(opt, "embedded"))
|
|
c = bmdAudioConnectionEmbedded;
|
|
else if (!strcmp(opt, "aesebu"))
|
|
c = bmdAudioConnectionAESEBU;
|
|
else if (!strcmp(opt, "analog"))
|
|
c = bmdAudioConnectionAnalog;
|
|
else {
|
|
msg_Err(demux, "Invalid audio-connection: `%s\' specified", opt);
|
|
free(opt);
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
free(opt);
|
|
if (sys->config->SetInt(bmdDeckLinkConfigAudioInputConnection, c) != S_OK) {
|
|
msg_Err(demux, "Failed to set audio input connection");
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
static int GetVideoConn(demux_t *demux)
|
|
{
|
|
demux_sys_t *sys = (demux_sys_t *)demux->p_sys;
|
|
|
|
char *opt = var_InheritString(demux, "decklink-video-connection");
|
|
if (!opt)
|
|
return VLC_SUCCESS;
|
|
|
|
BMDVideoConnection c;
|
|
if (!strcmp(opt, "sdi"))
|
|
c = bmdVideoConnectionSDI;
|
|
else if (!strcmp(opt, "hdmi"))
|
|
c = bmdVideoConnectionHDMI;
|
|
else if (!strcmp(opt, "opticalsdi"))
|
|
c = bmdVideoConnectionOpticalSDI;
|
|
else if (!strcmp(opt, "component"))
|
|
c = bmdVideoConnectionComponent;
|
|
else if (!strcmp(opt, "composite"))
|
|
c = bmdVideoConnectionComposite;
|
|
else if (!strcmp(opt, "svideo"))
|
|
c = bmdVideoConnectionSVideo;
|
|
else {
|
|
msg_Err(demux, "Invalid video-connection: `%s\' specified", opt);
|
|
free(opt);
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
free(opt);
|
|
if (sys->config->SetInt(bmdDeckLinkConfigVideoInputConnection, c) != S_OK) {
|
|
msg_Err(demux, "Failed to set video input connection");
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
static int Open(vlc_object_t *p_this)
|
|
{
|
|
demux_t *demux = (demux_t*)p_this;
|
|
demux_sys_t *sys;
|
|
int ret = VLC_EGENERIC;
|
|
int card_index;
|
|
int physical_channels = 0;
|
|
int rate;
|
|
BMDVideoInputFlags flags = bmdVideoInputFlagDefault;
|
|
void *pv;
|
|
|
|
if (demux->out == NULL)
|
|
return VLC_EGENERIC;
|
|
|
|
/* Set up demux */
|
|
demux->pf_demux = NULL;
|
|
demux->pf_control = Control;
|
|
demux->p_sys = sys = (demux_sys_t*)calloc(1, sizeof(demux_sys_t));
|
|
if (!sys)
|
|
return VLC_ENOMEM;
|
|
|
|
vlc_mutex_init(&sys->pts_lock);
|
|
|
|
sys->tenbits = var_InheritBool(p_this, "decklink-tenbits");
|
|
|
|
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
|
|
if (!decklink_iterator) {
|
|
msg_Err(demux, "DeckLink drivers not found.");
|
|
goto finish;
|
|
}
|
|
|
|
card_index = var_InheritInteger(demux, "decklink-card-index");
|
|
if (card_index < 0) {
|
|
msg_Err(demux, "Invalid card index %d", card_index);
|
|
goto finish;
|
|
}
|
|
|
|
for (int i = 0; i <= card_index; i++) {
|
|
if (sys->card)
|
|
sys->card->Release();
|
|
if (decklink_iterator->Next(&sys->card) != S_OK) {
|
|
msg_Err(demux, "DeckLink PCI card %d not found", card_index);
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
decklink_str_t tmp_name;
|
|
char *model_name;
|
|
if (sys->card->GetModelName(&tmp_name) != S_OK) {
|
|
model_name = strdup("unknown");
|
|
} else {
|
|
model_name = DECKLINK_STRDUP(tmp_name);
|
|
DECKLINK_FREE(tmp_name);
|
|
}
|
|
|
|
msg_Dbg(demux, "Opened DeckLink PCI card %d (%s)", card_index, model_name);
|
|
free(model_name);
|
|
|
|
if (sys->card->QueryInterface(IID_IDeckLinkInput, &pv) != S_OK) {
|
|
msg_Err(demux, "Card has no inputs");
|
|
goto finish;
|
|
}
|
|
sys->input = static_cast<IDeckLinkInput*>(pv);
|
|
|
|
/* Set up the video and audio sources. */
|
|
if (sys->card->QueryInterface(IID_IDeckLinkConfiguration, &pv) != S_OK) {
|
|
msg_Err(demux, "Failed to get configuration interface");
|
|
goto finish;
|
|
}
|
|
sys->config = static_cast<IDeckLinkConfiguration*>(pv);
|
|
|
|
if (sys->card->QueryInterface(IID_IDeckLinkProfileAttributes, &pv) != S_OK) {
|
|
msg_Err(demux, "Failed to get attributes interface");
|
|
goto finish;
|
|
}
|
|
sys->attributes = static_cast<IDeckLinkProfileAttributes*>(pv);
|
|
|
|
if (GetVideoConn(demux) || GetAudioConn(demux))
|
|
goto finish;
|
|
|
|
BMDPixelFormat fmt;
|
|
fmt = sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV;
|
|
if (sys->attributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &sys->autodetect) != S_OK) {
|
|
msg_Err(demux, "Failed to query card attribute");
|
|
goto finish;
|
|
}
|
|
|
|
/* Get the list of display modes. */
|
|
IDeckLinkDisplayModeIterator *mode_it;
|
|
if (sys->input->GetDisplayModeIterator(&mode_it) != S_OK) {
|
|
msg_Err(demux, "Failed to enumerate display modes");
|
|
goto finish;
|
|
}
|
|
|
|
BMDDisplayMode u_id;
|
|
|
|
char *mode;
|
|
mode = var_CreateGetNonEmptyString(demux, "decklink-mode");
|
|
if (mode)
|
|
sys->autodetect = false; // disable autodetection if mode was set
|
|
|
|
if (sys->autodetect) {
|
|
msg_Dbg(demux, "Card supports input format detection");
|
|
flags |= bmdVideoInputEnableFormatDetection;
|
|
/* Enable a random format, we will reconfigure on format detection */
|
|
u_id = bmdModeHD1080p2997;
|
|
} else {
|
|
size_t min_size = strnlen(mode, 4+1);
|
|
if (min_size < 3 || min_size > 4) {
|
|
msg_Err(demux, "Invalid mode: \'%s\'", mode);
|
|
free(mode);
|
|
goto finish;
|
|
}
|
|
|
|
msg_Dbg(demux, "Looking for mode \'%s\'", mode);
|
|
if (mode[3] == '\0')
|
|
mode[3] = ' '; /* 'pal'\0 -> 'pal ' */
|
|
u_id = BMDDisplayMode(GetDWBE(mode));
|
|
free(mode);
|
|
|
|
}
|
|
|
|
sys->video_fmt.video.i_width = 0;
|
|
|
|
for (IDeckLinkDisplayMode *m;; m->Release()) {
|
|
if ((mode_it->Next(&m) != S_OK) || !m)
|
|
break;
|
|
|
|
const char *mode_name;
|
|
BMDTimeValue frame_duration, time_scale;
|
|
union {
|
|
BMDDisplayMode id;
|
|
char str[4];
|
|
} mode;
|
|
mode.id = m->GetDisplayMode();
|
|
|
|
if (m->GetName(&tmp_name) != S_OK) {
|
|
mode_name = "unknown";
|
|
} else {
|
|
mode_name = DECKLINK_STRDUP(tmp_name);
|
|
DECKLINK_FREE(tmp_name);
|
|
}
|
|
if (m->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
|
|
time_scale = 0;
|
|
frame_duration = 1;
|
|
}
|
|
|
|
msg_Dbg(demux, "Found mode '%4.4s': %s (%dx%d, %.3f fps%s)",
|
|
mode.str, mode_name,
|
|
(int)m->GetWidth(), (int)m->GetHeight(),
|
|
double(time_scale) / frame_duration,
|
|
FieldDominanceStr(m->GetFieldDominance()));
|
|
|
|
if (u_id == mode.id) {
|
|
GetModeSettings(demux, m, bmdDetectedVideoInputYCbCr422);
|
|
msg_Dbg(demux, "Using that mode");
|
|
}
|
|
}
|
|
|
|
mode_it->Release();
|
|
|
|
if (sys->video_fmt.video.i_width == 0) {
|
|
msg_Err(demux, "Unknown video mode `%4.4s\' specified.", (char*)&u_id);
|
|
goto finish;
|
|
}
|
|
|
|
if (sys->input->EnableVideoInput(u_id, fmt, flags) != S_OK) {
|
|
msg_Err(demux, "Failed to enable video input");
|
|
goto finish;
|
|
}
|
|
|
|
/* Set up audio. */
|
|
sys->channels = var_InheritInteger(demux, "decklink-audio-channels");
|
|
switch (sys->channels) {
|
|
case 0:
|
|
break;
|
|
case 2:
|
|
physical_channels = AOUT_CHANS_STEREO;
|
|
sys->audio_streams = 1;
|
|
break;
|
|
case 8:
|
|
physical_channels = AOUT_CHANS_7_1;
|
|
sys->audio_streams = 1;
|
|
break;
|
|
case 16:
|
|
physical_channels = AOUT_CHANS_STEREO;
|
|
sys->audio_streams = 8;
|
|
break;
|
|
default:
|
|
msg_Err(demux, "Invalid number of channels (%d), disabling audio", sys->channels);
|
|
sys->channels = 0;
|
|
sys->audio_streams = 0;
|
|
}
|
|
rate = var_InheritInteger(demux, "decklink-audio-rate");
|
|
if (rate > 0 && sys->channels > 0) {
|
|
if (sys->input->EnableAudioInput(BMDAudioSampleRate(rate), bmdAudioSampleType16bitInteger, sys->channels) != S_OK) {
|
|
msg_Err(demux, "Failed to enable audio input");
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
sys->delegate = new DeckLinkCaptureDelegate(demux);
|
|
sys->input->SetCallback(sys->delegate);
|
|
|
|
if (sys->input->StartStreams() != S_OK) {
|
|
msg_Err(demux, "Could not start streaming from SDI card. This could be caused "
|
|
"by invalid video mode or flags, access denied, or card already in use.");
|
|
goto finish;
|
|
}
|
|
|
|
msg_Dbg(demux, "added new video es %4.4s %dx%d",
|
|
(char*)&sys->video_fmt.i_codec, sys->video_fmt.video.i_width, sys->video_fmt.video.i_height);
|
|
sys->video_es = es_out_Add(demux->out, &sys->video_fmt);
|
|
|
|
es_format_t audio_fmt;
|
|
es_format_Init(&audio_fmt, AUDIO_ES, VLC_CODEC_S16N);
|
|
audio_fmt.audio.i_channels = sys->channels / sys->audio_streams;
|
|
audio_fmt.audio.i_physical_channels = physical_channels;
|
|
audio_fmt.audio.i_rate = rate;
|
|
audio_fmt.audio.i_bitspersample = 16;
|
|
audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
|
|
audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
|
|
|
|
for(int i=0; i<sys->audio_streams; i++)
|
|
{
|
|
msg_Dbg(demux, "added new audio es [%d] %4.4s %dHz %dbpp %dch", i,
|
|
(char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate,
|
|
audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
|
|
sys->audio_es[i] = es_out_Add(demux->out, &audio_fmt);
|
|
}
|
|
|
|
ret = VLC_SUCCESS;
|
|
|
|
finish:
|
|
if (decklink_iterator)
|
|
decklink_iterator->Release();
|
|
|
|
if (ret != VLC_SUCCESS)
|
|
Close(p_this);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void Close(vlc_object_t *p_this)
|
|
{
|
|
demux_t *demux = (demux_t *)p_this;
|
|
demux_sys_t *sys = (demux_sys_t *)demux->p_sys;
|
|
|
|
if (sys->attributes)
|
|
sys->attributes->Release();
|
|
|
|
if (sys->config)
|
|
sys->config->Release();
|
|
|
|
if (sys->input) {
|
|
sys->input->StopStreams();
|
|
sys->input->Release();
|
|
}
|
|
|
|
if (sys->card)
|
|
sys->card->Release();
|
|
|
|
if (sys->delegate)
|
|
sys->delegate->Release();
|
|
|
|
free(sys);
|
|
}
|
|
|
|
static int Control(demux_t *demux, int query, va_list args)
|
|
{
|
|
demux_sys_t *sys = (demux_sys_t *)demux->p_sys;
|
|
bool *pb;
|
|
|
|
switch(query)
|
|
{
|
|
/* Special for access_demux */
|
|
case DEMUX_CAN_PAUSE:
|
|
case DEMUX_CAN_SEEK:
|
|
case DEMUX_CAN_CONTROL_PACE:
|
|
pb = va_arg(args, bool *);
|
|
*pb = false;
|
|
return VLC_SUCCESS;
|
|
|
|
case DEMUX_GET_PTS_DELAY:
|
|
*va_arg(args, vlc_tick_t *) =
|
|
VLC_TICK_FROM_MS(var_InheritInteger(demux, "live-caching"));
|
|
return VLC_SUCCESS;
|
|
|
|
case DEMUX_GET_TIME:
|
|
vlc_mutex_lock(&sys->pts_lock);
|
|
*va_arg(args, vlc_tick_t *) = sys->last_pts;
|
|
vlc_mutex_unlock(&sys->pts_lock);
|
|
return VLC_SUCCESS;
|
|
|
|
default:
|
|
return VLC_EGENERIC;
|
|
}
|
|
}
|
|
|